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You searched for: subject:"Lighthouses -- Lighting"
[texts]Papers on the comparative merits of the catoptric and dioptric or catadioptric systems of light-house illumination, and other subjects relating to aids to navigation - United States. Light-House Board

Keywords: Lighthouses -- Lighting
Downloads: 646
[texts]Course of six lectures on the various forces of matter, and their relations to each other [microform] - Faraday, Michael, 1791-1867
I. The force of gravitation -- II. Gravitation, cohesion -- III. Cohesion, chemical affinity -- IV. Chemical affinity, heat -- V. Magnetism, electricity -- VI. The correlation of the physical forces -- Lighthouse illumination, the electric light -- Notes
Keywords: Physics; Lighthouses -- Lighting
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